Question

Which of the following statement about an electric circuit is correct?

• A. The circuit is closed only when the switch is in ON position.
• B. The circuit is open only when the switch is in ON position.
• C. The wires should have a break or a gap for circuit to be closed.
• D. It should have only one electric cell.

Answer 1

The correct option is A The circuit is closed only when the switch is in ON position.

An electric circuit can have one or more than one electric cells as a source. For proper functioning, all the wires of the circuit should be continuous and they should not have any breaks except at the switch which is used to break or connect the circuit. A switch in ON position is necessary for the circuit to be closed. If it is in OFF position, then the circuit is said to be open and no current flows through it.